I wouldn't hesitate to buytheon you mention. But I don'tknow what
your electronic skills are. It could be a very good deal, or a boat
anchor.

Take a look at the diagram in the 2nd link and decide if you could
rebuild one. The transformer, caps, and heatsink are the expensive
parts. If you have those repair is easy and fairly inexpensive.

But there is something to be said for a brand new, and under warrenty
item.

Terry